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zama carb only runs on choke

The New Ryobis and Homelites are disposable, Many don't even have air filters. If you try to open the choke it begins to rev a bit but then dies. On these, that "choke" isn't a choke. I noticed the air tube from the air box to carb will crush closed as I hold the choke in. If the answer is over one to three months and you did not stabilize your fuel, then it has gone stale and is much less combustible than it once was and can lead to engine stalling. for the engine to run properly. Get a 700, they are EFI :lol: <---rep99099 aka George on his new pink 700 build! Luckily, this is an easy fix and you can probably take care of it without removing your carburetor. I had to choke it to get it started and it would only stay running under full choke. This site is owned and operated by Robert Van Nuck. Engine Only Runs with Choke On or Pressing Primer. Among them were a carburetor and an electric engine starter. Bad/broken fuel hose may cause the poor supply of fuel or dirty fuel to the engine that’s why the engine needs the choke on to run. OK sorry guys yes back to the original problem, I pulled the carb off and yes choke is on when up and it only runs in the up position. When I went to start it I pulled out the choke and the bike started fine. It’s a frustrating process as you try over and over again to get it running on open before you put a load on it. I know exactly where you’re at right now. The pilot jets on these can be where most of the problem lies. OK sorry guys yes back to the original problem, I pulled the carb off and yes choke is on when up and it only runs in the up position. I pulled the air tube off thinking it might be the air filter. Thread starter cuda6768; Start date Feb 22, 2013; C. cuda6768 New Member. Suggest you drop the float bowl and clean that out. I pulled the carb off 3 times so far tonight and used 2 cans of carb cleaner with no luck.. Am I missing something here? Engine Only Runs with Choke On or Pressing Primer. Running with false enrichining like the choke does, indicates an lean condition. Hey guys, a friend of mine has a G2 and it will only run with the choke half out. allen pierce. Then, unscrew the pilot jet beneath it. Only runs when choked. I even pulled one off of another working mower to make sure. Starts great with choke on, but will only continue running with the choke still on. So you either need more fuel or less air. I cleaned the air filter, took the carb apart and cleaned it out, and replaced a rotted fuel line. Recently it started preforming poorly, would only run on full choke. Note: this is a general repair guide. When I re-installed the carb now the only way the tractor will idle or run full throttle is with the choke fully closed. Thread starter elitr6; Start date Apr 23, 2010; 1; 2; Next. My 1996 klr650 only runs with the choke on. link to What Happens If You Disconnect the Positive Terminal First? ZAMA supplies diaphragm carburetors, solenoid valves, electronic fuel injection(EFI), oilpumps, various precision machining parts to all major OEMs. I bought this engine used so didn't know its history. I orderdered a carb kit, it's a Zama by the way. Take note of the condition of the rubber gasket between the bowl and the carburetor while you’re doing this, and be careful not to pinch the gasket when reassembling. https://www.facebook.com/ereplace/https://twitter.com/ereplacehttps://www.pinterest.ca/ereplace/?eq=ereplacementparts\u0026etslf=5048#Generator #SmallEngine #Carburetor You said that while rev'ing you can't take the choke off. The carb he recommended will not have a choke (or choke horn) at all. When your chainsaw only runs if the choke is on the problem, in most cases, is a result of fuel supply problems or a faulty carburetor. It will not idle unless throttle is applied. New fuel, stripped carb, blew out jets, same. One cause could be an air leak on the carb, head gasket, crankshaft seal. WHY your motorcycle only runs on CHOKE. With the bowl removed, use an appropriately sized screwdriver to remove the main jet. If I move the choke any bit open the engine dies . But the cart will only stay running if I keep my hand covering about 80~90% of the air tube. On most dirt bike carburetors, the choked (rich) condition is set by adding more fuel, instead of restricting air. However, you start it up on choke and everything is fine until you turn the choke off, and the engine dies. WHY your motorcycle only runs on CHOKE. This is a pretty simple thing to diagnose and fix. If the issue was with the top two causes, make sure you use only stabilized fuel and change it out after 1 year. A good tune means the engine should start By comparison, race carburetors are purpose built for specific applications. with the choke on, I can adjust it, and accelerate, but when I start to take the choke off, the engine speeds up a bit then shuts off. Twitter 0. Thanks the expert that give their advised. With the jet removed, you’ll likely see no daylight through the small pinhole, or it will be restricted by a varnish substance. I pulled the air tube off thinking it might be the air filter. If not, you’ll probably still be fine for now. To drain out old gas, first, turn off the fuel valve. When I re-installed the carb now the only way the tractor will idle or run full throttle is with the choke fully closed. We removed the carb. While the choke is fully closed, the unit starts and idles slow. C. cuda6768 New Member. My 5hp Briggs and Stratton Horizontal, diaphragm carburetor, mechanical governor, will only run on full choke. Put it all back together, will run now but only on choke. I noticed the air tube from the air box to carb will crush closed as I hold the choke in. Once it had warmed up sufficiently I pushed the choke in and the bike dies. So, when your bike only runs on choke, it is because the “rich” mixture that is being burned is actually closer to the appropriate mixture. Terms and Conditions for Home Battery Bank. But the cart will only stay running if I keep my hand covering about 80~90% of the air tube. Your generator starts up just fine, or maybe you just needed a quick shot or two of carb cleaner in the intake to get it fired up. No changes. My 600 used to only run on full or half choke at the beginning of the season. Replaced it and works great. My 5hp Briggs and Stratton Horizontal, diaphragm carburetor, mechanical governor, will only run on full choke. I sprayed some carb cleaner around the engine intake between carb and engine, no RPM change so it is air tight. or there is an a gasket on the intake leaking sucking air. The carb has been soaked in a cleaning solution which made it come out looking new and none of the holes in the needles/jets are clogged. What gives? Won't run without choke - SU carb. So, fuel hose isn’t out of this circle. I e-mailed Patrick at Pro Systems about a street carb for my ZZ454. I have to push the choke in to keep it running. Try using an unlighted propane torch, and pass it over the carb then open the choke, if the propane keeps the engine running that will confirm the need to plug holes down stream of the carb. This blog post will show you the steps to fix the choke issue. If i give it any gas, it dies and when i take the choke off, it dies. Just taking a look at the selection at a big-box store, let alone a designated battery... What Happens If You Disconnect the Positive Terminal First? elitr6 Offroader . Nubs Cartaholic - V.I.P. From there, it is diverted through a series of ports and other jets depending on whether or not you’re on idle or full throttle. Do a flow check - with the car running pull off one of the fuel lines to a carb and let it squirt into a jar. Discussion in 'Engine, Fuel and Exhaust' started by Wtlj, Aug 16, 2012. I disassembled, cleaned, and installed a rebuild kit in my carb. Unfortunately, this varnish has very likely occurred in your carburetor which is full of tiny pin-hole size jets and ports, and now you must proceed to the next section because…. Home Battery Bank is compensated for referring traffic and business to these companies. Only runs when choked. Twitter 0. First, shut off the fuel valve. Starts great with choke on, but will only continue running with the choke still on. I have my jets set at 48 pilot/ 168/main??? any ideas what is the problem I have tired to make the mixture as rich to as lean as I can go no change. I have rebuilt the carb and got it running, but it will only run if the choke is full on. I couldn't get it to run at all with the original carb even after a thorough cleaning. Hi Guys I've got another one here that's got me scratching my head. As soon as the thotle is off ... and I have seen a hint on the internet that yours may be a copy of a Zama. Let us know what you did to solve it in the comments below!Here's what you need to know:What's causing this symptom? Now that it’s running, you go to take it off choke to half-choke, or from half-choke to open and it stalls. I have rebuilt the carb and got it running, but it will only run if the choke is full on. Problem. Turned out the air metering plug( black plastic ribbed plug under the black plastic plug under the black plastic screw) was missing its lower tiny oring on the original AND the gas had gone bad after 6 months. I left the choke on and tried to ride it and it just dies, pulled the petcock (Pete's favorite word) off and it would pass fuel. I have a used stihl fs85t with a zama carb. Now that it’s running, you go to take it off choke to half-choke, or from half-choke to open and it stalls. If you need something stronger, try Berryman Chemdip. If your blower only runs with the choke on, you probably have an issue with your carburetor. Regular carb clean spray is the easiest to start with. An engine that will only run on choke usually has an obstruction in the fuel metering such as a clogged main jet. Once it's running, it only runs for 10 secs, or so,before it dies. Discussion in 'Engine, Fuel and Exhaust' started by Relax N Ride, Sep 3, 2011. It's an echo trimmer with a Zama carb. If it only runs with the choke wide open including at cold startup then the carb is flooding. Since you just got the engine done I would double check the carburetor. Post by 'Berry Farmer » Sun Sep 19, 2010 7:28 pm . Follow the remaining advice below and then proceed to the next section. Relax N Ride New Member. It is quite easy to put the new carb on. I like Berryman Chemtool. So, why does a motorcycle only run with the choke on? If we’ve established that the main jet is now clean but there is still a problem, we’ll need to verify that the pilot jet is now clean. With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. It's a weedeater featherlite trimmer. Was that fuel treated with stabilizer like SeaFoam or Stabil? He has had this problem since he bought it, he rebuilt the carb and had the same problem. Dwight Coleman there are usually only a few possibilities if it only runs with the choke. You can likely skip to the next section. Visit our website at www.ereplacementparts.com for thousands of manufacturer-approved replacement parts. The reason it’s important to turn off the choke once the engine is warm is that a lower fuel to air ratio allows for more efficient use of gasoline. thoroughly cleaned, rep Only Runs with Choke on - Honda Trail - CT90 & CT110 Forum I recommend ethanol-free fuel if you can help it as it helps to prevent water in the air from being attracted to your fuel. The Fuel System Is Checking Out And There Is An Air Leak. I just installed a new, in the box, Briggs and Stratton carburetor, part number 498298 (original carb is 492611). 1 of 2 Go to page. The other could be a clogged low speed and idle circuit. there is still some passage inside the carb blocked not letting enough fuel into the cyl. any ideas what is the problem I have tired to make the mixture as rich to as lean as I can go no change. P.S. If you have carburetor cleaner spray, now would be a good time to spray it through that jet hole for good measure. 7,711. It starts fine with choke on, but as soon as i slide the choke off it stalls.. Solution. My 1996 klr650 only runs with the choke on. You may have to file a screwdriver down to fit if it’s too big. ... Tonight I changed the oil & filter, spark plugs and removed and cleaned the carb. I moved this carb to another ATC70, and it did the same thing. So I bought a cheap carb replacement kit on eBay. I couldn't get it to run at all with the original carb even after a thorough cleaning. apart and cleaned it but now it wont idle it only runs when the choke is engaged. It would not start at all unless you put gas down the carb. Tractor only runs with choke full closed SOLVED!!!! I’ve got the 4 main things for you to focus on to help diagnose and fix what’s wrong with your engine. Post by 'Berry Farmer » Sun Sep 19, 2010 7:28 pm . I sprayed some carb cleaner around the engine intake between carb and engine, no … I disassembled, cleaned, and installed a rebuild kit in my carb. Feb 23, 2013 #2 so once you choke it will it run fine? Have you ever fired up your generator, only to find out that it dies every time you try to turn off the choke? At this point the carburetor needs disassembled and thoroughly cleaned of any fuel deposits that have accumulated. I have a 06 YFZ450 and it had a slight miss in it. I have taken the carb off and checked the float and cleaned the lines but it keeps shutting off on me. Share This Post. Now, find an empty fuel container and find where the fuel line attaches to the carburetor. Try using an unlighted propane torch, and pass it over the carb then open the choke, if the propane keeps the engine running that will confirm the need to plug holes down stream of the carb. I just installed a torker 289 and a edelbrock 1405 600cfm carb on my 302 HO. The good news is, a new carb, two pump bulbs, two fuel filters, an air filter, spark plug and new fuel lines can be had for a very easy to swallow price of $10.50 to 22.50, most being $13.50 on ebay. Please consult a certified electrician if there is anything you are uncomfortable with. So I have a generator that has a Walbro LMT carb on it but it only runs on full choke. On these, that "choke" isn't a choke. However, the C1U-W32 uses repair kit RB-142 and diaphgram/gasket kit GND-78. Apr 23, 2010 #1 The good news is I now have a kenlowe, oil gauge, 2nd temp gauge and rev counter all fitted and wired up! Robert lives in central Michigan and enjoys running, woodworking, and fixing up small engines. Think back to the last time you put fuel in the tank. To me that would indicate an air leak somewhere in the carb, but if the gaskets are good between carb and engine, what could it be? ZAMA C1Q Carb trouble-No Fuel. any time you need the choke on for the engine to run you are shutting down the air flow because there is not enough fuel getting to the cyl. I know the gas is good, because I filled up all of my mower's at the same place and time. It also fixed my issue of my Carb only works Choke on. link to Can I Use a Different Battery in my Car? Outdoor Gasoline and Electric Powered Equipment and Small Engines - Trimmer Runs When Fully Choked - I have a Homelite string trimmer, with a Zama C1U carb. Next Last. Put it all back together and still the same symtoms remain. only runs with choke on ???? Bike only runs with choke on??? If not, let’s quickly clean out the pilot jet. I also just tried to run it with my figers blocking half the about 3/4 of the intake and still would not run with the choke off. When you shut off your generator for storage, turn the fuel valve off while the engine is running to allow the carburetor to use up the remaining fuel in the bowl and preventing this fuel from oxidizing around your main jet. I'm Robert and this blog is about my journey of learning about battery banks, generators, and power outage preparations. It was leakage by the o ring. Honda four stroke runs only if choked 05-08-2005, 04:26 PM Howdy...My friend has a 15 horse power Honda 4 stroke outboard that will only run with the choke on or my hand over the intake. Step Four. It's been out of service for 20 years, and I'm trying to revive it. ZAMA is a well-known air-fuel-system supplier in the outdoor power equipment industry worldwide. Choke in really boggy at 1/4 throttle and dies on tick over, air screw adjusted, same. It shouldn’t be much. What are the settings for everything? Contents. Clear out the obstruction and reassemble. The car now will only run with Full choke, as soon as I let out of choke it sputters and dies, I checked the timming and it is fine everything seems to be good but still wont run with out choke. Will rev up, but only after about 5 minutes when the engine is warm. The other could be a clogged low speed and idle circuit. He has had this problem since he bought it, he rebuilt the carb and had the same problem. All you need is your model number and you can shop with confidence, knowing your replacement part will fit your machine!Buy with confidence with of our no-hassle return policy. Still Not Running Right after Carb Cleaning I pulled out the carb today and cleaned the jets with carb cleaner and blew them clean with my air compressor. I have a different model Stihl, and the Zama carb is notorious for this. My Chainsaw Will Only Run on Choke: How to Fix This. Article Number. Discussion in 'Engine, Fuel and Exhaust' started by Relax N Ride, ... you may have trash/varnish in the carb. Google+ 0. ... (even when it was new this machine did not start first go with Ruixing carb) and runs like a dream. Any suggestions? I pulled the carb and found no dirt, but thoroughly cleaned and blew it out. You can order either at the following. Now, remove the main bolt/nut at the bottom-center of the bowl and remove the bowl. It's an enrichment circuit. Conversely, having one that is too narrow is likely to damage the brass jet when you dry to turn it and the screwdriver won’t have even pressure on both slots that it should fit into. One cause could be an air leak on the carb, head gasket, crankshaft seal. Basic question , I know. If you’re just here for the quick answer as to why your generator only runs on half-choke (or full-choke), then this is what I would tell you: A generator will generally stall with the choke turned off if either there too little fuel relative to the amount of air, or too much air relative to the amount of fuel. Using a single bristle from a wire brush or burning the paper/plastic off the end of a twist tie, ream out the hole in the jet. So you either need more fuel or less air. Share This Post. After not been started for 6 months my indian gp will only run with the choke out. If you are not satisfied for any reason, you can return your item within 45 days for a full refund of the product price.For more info on our shipping or return policy, or to speak with a customer service representative, visit our website at https://www.ereplacementparts.com/Connect With Us! Homelite 33cc Powerstroke Chainsaw only runs on FULL choke or barely cracked open, clogged holes under WELCH plug. This is a classic symptom of a partially or fully clogged pilot jet. Patrick responded very quickly, and definitely seems like a good guy to deal with. The fuel pump is working fine also. If your carburetor is not tightened properly to the intake, it will cause a vacuum between the two and the intake to the combustion chamber will suck in far more air than it knows what to do with. Thanks experts. Before gasoline can be drawn up from the bowl of the carburetor, mixed to the proper fuel to air ration, and pulled into the intake, the gasoline must first pass through the main jet.

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